A majority of Oklahoma City residents — at least 450,000 of the more than 500,000 counted for the 2000 census — live within a mile of where city trucks traveled, the analysis shows.

It did not include hundreds of thousands of people living in other cities throughout the metro area, which had more than 1 million people during the 2000 census.

"People were happy with our efforts for the most part,” City Manager Jim Couch said. "Of course, some always aren't.”

The analysis by The Oklahoman included data generated by 17 city dump trucks, which carry devices that record location and movement using global positioning satellites. The data was combined with population totals by the U.S. Census Bureau and analyzed using mapping software.

City officials were unable to provide data from seven smaller tracker-equipped trucks, saying the units didn't store data from the storm. The seven affected trucks were smaller, carrying half the amount of sand as others used during the storm and weren't equipped with plows.